EP0372607A3 - A sliding rule for conversion tables, address directories and similar references, made of cardboard or the like - Google Patents
A sliding rule for conversion tables, address directories and similar references, made of cardboard or the like Download PDFInfo
- Publication number
- EP0372607A3 EP0372607A3 EP19890202934 EP89202934A EP0372607A3 EP 0372607 A3 EP0372607 A3 EP 0372607A3 EP 19890202934 EP19890202934 EP 19890202934 EP 89202934 A EP89202934 A EP 89202934A EP 0372607 A3 EP0372607 A3 EP 0372607A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding
- board
- cardboard
- sliding rule
- conversion tables
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G1/00—Hand manipulated computing devices
- G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
- G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
- G06G1/06—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with rectilinear scales, e.g. slide rule
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Medicines Containing Plant Substances (AREA)
- Cartons (AREA)
Abstract
The sliding rule comprises a flat, window-bearing sheath of a stiff
material, in which a sliding tablet of the same material is
received, the sheath and the sliding tablet bearing correlated
inscriptions or pictures. According to the invention, the sliding
rule is made from a single blank of said stiff material, comprising
a first and a second board (10, 12), of which at least one has
windows, integrally joined and folded one upon the other and
laterally bonded to form said sheath, and a third board (14) which
is end-joined to said second board through an intermediate area
(23), and is folded between said first and second board around a
folding line (18) at the midline of said intermediate area, the
intermediate area being removed for using the sliding rule, said
third board acting as sliding tablet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT68100/88A IT1223984B (en) | 1988-12-09 | 1988-12-09 | SLIDING REGULATION OF CARDBOARD OR SIMILAR FOR CONVERSION TABLES ADDRESSES AND SIMILAR READS |
IT6810088 | 1988-12-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0372607A2 EP0372607A2 (en) | 1990-06-13 |
EP0372607A3 true EP0372607A3 (en) | 1990-10-03 |
Family
ID=11307855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890202934 Withdrawn EP0372607A3 (en) | 1988-12-09 | 1989-11-20 | A sliding rule for conversion tables, address directories and similar references, made of cardboard or the like |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0372607A3 (en) |
IT (1) | IT1223984B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU675667B2 (en) * | 1993-11-12 | 1997-02-13 | No. 1 Little Collins St. Pty. Ltd. | An indicating device for indicating relevant dates of a pct application |
IT1297967B1 (en) | 1997-03-19 | 1999-12-20 | Promo Service Di Michele Maffe | SIMPLIFIED ASSEMBLY DEVICE FOR THE PREPARATION OF RULES AND / OR STRUCTURES THAT CONTAIN THEM MADE OF PAPER, CARDBOARD AND |
US10625536B2 (en) * | 2018-06-06 | 2020-04-21 | Konstantinos Martinos | Document case and template with decorative cover |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025767A (en) * | 1959-02-18 | 1962-03-20 | John B Ruffalo | Paper slide rule calculator |
US3711014A (en) * | 1971-08-16 | 1973-01-16 | J Tucker | Personal portfolio computer |
US3902656A (en) * | 1973-12-06 | 1975-09-02 | Rothchild Printing Company Inc | Slide calculator construction |
US4233768A (en) * | 1978-09-21 | 1980-11-18 | Bromberg Howard M | Slide calculator |
-
1988
- 1988-12-09 IT IT68100/88A patent/IT1223984B/en active
-
1989
- 1989-11-20 EP EP19890202934 patent/EP0372607A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3025767A (en) * | 1959-02-18 | 1962-03-20 | John B Ruffalo | Paper slide rule calculator |
US3711014A (en) * | 1971-08-16 | 1973-01-16 | J Tucker | Personal portfolio computer |
US3902656A (en) * | 1973-12-06 | 1975-09-02 | Rothchild Printing Company Inc | Slide calculator construction |
US4233768A (en) * | 1978-09-21 | 1980-11-18 | Bromberg Howard M | Slide calculator |
Also Published As
Publication number | Publication date |
---|---|
IT8868100A0 (en) | 1988-12-09 |
EP0372607A2 (en) | 1990-06-13 |
IT1223984B (en) | 1990-09-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE ES FR GB |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE ES FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910404 |